Bracket set of cng filling receptacles for motor vehicles

ABSTRACT

The invention is to search for and create the specific jigs and fixtures for CNG filling receptacles connected to the fuel filler tanks for motor vehicles, by emphasizing on the convenience of refueling.

FIELD OF THE INVENTION

The invention is in the field of the mechanical engineering and product design related to the equipment for CNG system installation for motor vehicles.

1. Related Background Art

The purpose of this invention is to develop the type of equipment used in the CNG system for motor vehicles which meets to the needs of the system. Generally, the pipes and filling receptacles of CNG motor vehicles are located in the engine room, then the fuel filler tank and CNG filling receptacle are separated so it is difficult for the driver to find the proper location for parking and refueling. Therefore, there is the idea to add the gas-filling receptacle to the existing fuel filler tank for facilitating CNG refueling.

2. Description and Object of the Invention

This invention aims to develop the form of CNG filling receptacle installation for motor vehicles within the same socket of fuel filler tank. In this case, the cover of fuel filler tank on motor vehicle will be opened and the driver can choose between fuel and gas. In addition, the components used to mount the bracket sets of gas filling receptacles are designed to be the compatible to the fuel filler tank and it will be easier for the driver in refueling.

DISCLOSURE OF THE INVENTION

This is the invention of the jigs and fixtures for gas filling receptacles added to the fuel filler tank. The components are designed and made of metal sheets which are cut, drilled and folded to make the work pieces to be mounted for reinforcement. Moreover, the molded plastic components also are used in this case.

Processes of Parts Invention and Installation

Steps of Parts Invention

-   -   1. Cut the edge of the metal sheet as per the figure; drill the         passing holes for screws; fold it and make the shape as per the         figure {circle around (1)}; connect work pieces with nuts; set         the nut holes in the same position as the passing holes and make         it as the mounting frame for the gas filling receptacle;     -   2. Cut the edge of metal sheet; drill and fold it, then make it         into the shape of the upper mounting board for gas filling         receptacle as per the figure {circle around (2)};     -   3. Cut the edge of metal sheet; drill and fold it; make it into         the shape of the lower mounting board for gas filling receptacle         as per the figure {circle around (3)};     -   4. Put and connect the work pieces {circle around (1)}, {circle         around (2)}, {circle around (3)} together;     -   5. Cut the edge of metal sheet; drill the passing holes for         screws and make such work pieces into the shape of the board to         be mounted to the frame as per the figure {circle around (4)};     -   6. Make the screw case by cutting the metal pipe as per the         figure {circle around (5)};     -   7. Cut the edge of metal sheet; drill the passing holes for         screws; connect it with nuts after setting the nut holes in the         same position as the holes on the board locking the jigs and         fixtures of gas filling receptacle to the frame as per the         figure {circle around (6)};     -   8. Cut the edge of metal sheet; drill the passing holes for         screws; fold and make it into the shape as shown in the figure;         connect it with nuts; set the nut hole in the same position as         the passing hole for covering the fuel pipe as per the figure         {circle around (7)};     -   9. Make the plastic cover for gas filling receptacle {circle         around (8)};

Installation Procedures

-   -   1. Connect the gas filling receptacle to the jigs and fixtures         {circle around (1)}, {circle around (2)}, {circle around (3)};         lock the filling receptacle with the board;     -   2. Screw the holding components of the gas filling receptacle         {circle around (1)}, {circle around (2)}, {circle around (3)} in         the mounting board;     -   3. Put the work pieces {circle around (1)}, {circle around (2)},         {circle around (3)}, {circle around (4)} on the frame; put the         flanges of the screw passing holes across the sides of the         frame;     -   4. Put the screw cases {circle around (5)} in the position of         the passing holes of the mounting board 4; thread the screws         through the passing holes and tighten them for supporting all of         four work pieces;     -   5. Put the locking board of gas filling receptacle set {circle         around (6)} with the frame; set the screw holes in the same         position as the screws and tighten the screws for locking the         gas filling receptacle set {circle around (1)}, {circle around         (2)}, {circle around (3)}, {circle around (4)} to the frame;     -   6. Reassemble the fuel filling receptacle in the old position on         motor vehicle;     -   7. Install the cover of fuel filler tank {circle around (7)} in         the mounting structure of gas filling receptacle {circle around         (1)} and tighten screws;     -   8. Lay the gas pipe from the system to the gas filling         receptacle;     -   9. Install the plastic cover {circle around (8)} in the vehicle         body; set the passing hole of fuel pipe in the same position as         the hole of the fuel pipe and the passing hole of gas filling         receptacle before tightening screw.

BEST MODE FOR CARRYING OUT THE INVENTION

As described in the section “Disclosure of the Invention”. 

1. A CNG filling receptacle holding device for a vehicle according to the present invention is characterized in that: A gas filling receptacle (7) installed on an upper gas filling receptacle holding bracket (3) and a lower gas filling receptacle holding bracket (4) whereas the said brackets are molded plates joining and superimposing to one another. On the top of the brackets, there are provided holes to put on the gas filling receptacle (7). The side thereof is fixed to the frame bracket (5) whereas the said bracket is molded to form a U shaped wing connected to the frame locking bracket (6) wherein the said bracket is molded to form a shape with a groove in the middle and has a protruding flange on both sides to join with the side frame of the vehicle (1) whereas the middle line of the bracket (5) and the frame locking bracket (6) is under the fuel pipe unit (12). On the upper part thereof, there are provided a fuel pipe covering bracket (10) joining to the frame bracket (5) covering the fuel pipe unit (12); and on the other side, the frame locking bracket (6) joining to the outside of side frame of the vehicle (1). On the inside of the side frame of the vehicle (2), there are provided two locking frames (9) at the front and the back of the transverse frame of the vehicle (2) respectively. In addition, there are provide four frame fastening sleeves (8), two of which is installed at the top of side frames of the vehicle (1); while the remaining two is installed on the bottom of the side frame thereof. In the said installation, the frame fastening sleeve (8) is used as an abutment in the middle of the flange of the frame locking bracket (6) and that of the frame locking plate (9) using locking bolts (31) going into the through holes of the frame locking bracket (6), the frame locking sleeve (8) and the frame locking plate (9). The spot nuts (21) are used to tighten the connections on both the top and the bottom at the four spots. The filling receptacle cover (11) is put on the gas filling receptacle (7) and the fuel pipe unit (12) by locking the filling receptacle cover (11) to the edge of the hole of the vehicle body.
 2. A bracket set of CNG filling receptacles for motor vehicles, including: a mounting frame for gas filling receptacles, an upper mounting board of filling receptacles, a lower mounting board of filling receptacles, a plate mounted to the frame, a screw case, a board for locking the gas filling receptacles to the frame, a first cover of a fuel filling pipe, and covers of gas and fuel filling receptacles. 